First Look: A Serial Killer Returns On Blue Bloods

Donnie Wahlberg as Danny Reagan

1. Donnie Wahlberg as Danny Reagan

When Danny and his family are threatened by Thomas Wilder (Louis Cancelmi), a serial killer Danny has been unable to apprehend, Linda's concern intensifies over her husband’s job as well as the state of their marriage. Also, Jamie challenges his superior officer, Sgt. William Mulvey, on this week's episode of Blue Bloods.


"Unsung Heroes" (Season 6, Episode 8)
Amy Carlson as Linda Reagan

2. Amy Carlson as Linda Reagan

"Unsung Heroes" (Season 6, Episode 8)
Will Estes as Jamie Reagan and Vanessa Ray as Edit Jenko

3. Will Estes as Jamie Reagan and Vanessa Ray as Edit Jenko

"Unsung Heroes" (Season 6, Episode 8)
Donnie Wahlberg as Danny Reagan and Marisa Ramirez as Maria Baez

4. Donnie Wahlberg as Danny Reagan and Marisa Ramirez as Maria Baez

"Unsung Heroes" (Season 6, Episode 8)
Vanessa Ray as Edit Jenko and Will Estes as Jamie Reagan

5. Vanessa Ray as Edit Jenko and Will Estes as Jamie Reagan

"Unsung Heroes" (Season 6, Episode 8)
Marisa Ramirez as Maria Baez and Donnie Wahlberg as Danny Reagan

6. Marisa Ramirez as Maria Baez and Donnie Wahlberg as Danny Reagan

"Unsung Heroes" (Season 6, Episode 8)
Bridget Moynahan as Erin Reagan-Boyle

7. Bridget Moynahan as Erin Reagan-Boyle

"Unsung Heroes" (Season 6, Episode 8)